'With Buffy, I got to do so much. So what do you do next? What do you do that an audience hasn't seen you do?

'Bringing to life two characters and making them different, but at the same time interesting, and showing the similarities is definitely a challenge I've never done.'

Ringer comes after the storyline of a young lady who's on the run from the gang and covering out by inhabiting the life of her identical twin sister, until Sarah Michelle Gellar discovers that her twin's existence has a bounty on it likewise.